2 years ago

3. The ratio of brown-haired students to blonde-haired students is 5 to 2. There are

Mathematics

1 answer:

AysviL [449]2 years ago

8 0

536 have blonde hair

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1. f(x) = x2 - 21<br> f(5)

matrenka [14]

Answer:

x=13

Step-by-step explanation:

if you will substitute the value of f(x) with 5, you will get the following equation:

5=2x-21

2x=26/÷2

x=13

(I didn't know what you ment when you wrote x2, is it x square or 2X)

I really hope it was the second one, cause that's how I solved it.

8 0

2 years ago

What is the value of (4)(-7)(-2)?

spayn [35]

Answer:

=(4)(-7)(-2)

=-28*(-2)

=+56 is the answer

Step-by-step explanation:

hope it help ^_^

4 0

3 years ago

Michael recorded the color of each car that passed by his office. He saw 30 blue cars and 40 green cars. What is the experimenta

Alex73 [517]

Answer:

3/7

Step-by-step explanation:

4 0

3 years ago

Is this correct if not what is it?

tia_tia [17]

if x = -1 and y= -3

y= 2x-1

-3=2(-1)-1

-3= -2-1

-3= -3

if x=0and y = -1

y=2x-1

-1=2(0)-1

-1=0-1

-1= -1

if x=1 and y=1

y=2x-1

1=2(1)-1

1=2-1

1=1

if x=2 and y=3

y=2x-1

3=2(2)-1

3=4-1

3=3

SO IT'S CORRECT ❤

THANJ YOU

8 0

2 years ago

Suppose the side of square A is 10in, and the area of square C is 162in2. What is the area of square B if the three squares form

kupik [55]

Square A:

a=lw

a=10*10

a=100in2

Square B:

a^2 + b^2 = c^2

100^2 +b^2 = 162^2

10,000 + b^2 = 26,244

b^2 = 16,244

b = 127.45in2

7 0

3 years ago